Finding the Fourth Proportional to 1,519.89, 2,097.32 and 856.70

Step by Step Solution

1. Step 1: Write the proportion equation
   1,519.89 : 2,097.32 = 856.70 : x
2. Step 2: Convert to fraction form
   1,519.89/2,097.32 = 856.70/x
3. Step 3: Cross multiply
   1,519.89x = 2,097.32 × 856.70
4. Step 4: Simplify right side
   1,519.89x = 1,796,774.04
5. Step 5: Solve for x
   x = 1,796,774.04/1,519.89
6. Step 6: Final answer
   x = 1,182.17